What might prevent accurate radar detection of surrounding vessels?

Weather conditions can significantly impact the accurate detection of surrounding vessels by radar. Various atmospheric phenomena, such as heavy rain, fog, snow, or even strong winds, can create interference that distorts the radar signals. Rain, for instance, can cause attenuation, which weakens the radar waves and makes it difficult to detect targets at greater distances. Additionally, reflection or scattering of radar signals in adverse weather can lead to false echoes or missed targets. It's crucial for the operator to be aware of these limitations during poor weather to ensure safe navigation and situational awareness.

While operator error, vessel size, and radar shadow can also affect radar detection, weather conditions are a more pervasive and impactful factor that can compromise radar performance and visibility on the water.